So my order finally came in. Only took 7 business days from China. I got:

1 m403 PCC
1 pack of 5 Smoore cartomizers
2 m403 batteries

First impression. Awesome! This is a must have if you plan to vape on the go with a super mini. The PCC is just the slightest bit longer than a pack of analogues, and not all that much heavier. Holds 4 carts, a fully assembled m403, and a battery in the charge slot. It has the same charging capacity as a m401/2 PCC so I should be able to get about 10 or so battery charges before the PCC itself should need charged.

For me to be able to store the cartomizers in the PCC without modification to the foam insert, I just cut the sheath off one of the soft caps (atomizer end, not mouth piece end) and then I just stick in the little plug (the piece left after removing the sheath) and slide the cartomizer in the slot.

I'm very happy with this little guy and haven't had an analogue since. Time to beat this habit!

I will update this thread in about a week and probably do a review of the product by then since no one seems to have one of these gadgets or posts about them.